Do I need to file a TM30 every time I return to Thailand if I travel frequently for work?

Travelers frequently leaving and returning to Thailand are required to comply with the TM30 reporting rules, but whether it's needed each time can depend on the local immigration office's policies. While most immigration offices require an updated TM30 upon re-entry, if the traveler stays at the same address and their landlord files the TM30 online, it may not be necessary to file a new one each time. The landlord generally holds responsibility for TM30 registrations, and they can register online to facilitate the process.